Revelations (v6.7) patch added several extended quests for various characters. These quests are about Karjalain's training with different bears in order to have a rematch with "White Pervert" (Andre) and Andre's suspicious tests to let her take over to lead the fashion industry. You must have Karjalain in the team to initiate all NPC dialogs.
You do not need to bring Karjalain along for hunting quest items. You can
check the drop rates of quest items at Wordwood: Granado Espada Maps.